---
product_id: 493152670
title: "ROCKBROS Electric Bike Horn 120dB Adults Kids Bike Horn Alarm IPX4 Waterproof Electronic Bicycle Horns for Handlebars Ebike Scooter Horn"
brand: "rockbros"
price: "€ 28.41"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/493152670-rockbros-electric-bike-horn-120db-adults-kids-bike-horn-alarm
store_origin: GR
region: Greece
---

# IPX4 waterproof rating 120dB max volume Tool-free elastic strap mount ROCKBROS Electric Bike Horn 120dB Adults Kids Bike Horn Alarm IPX4 Waterproof Electronic Bicycle Horns for Handlebars Ebike Scooter Horn

**Brand:** rockbros
**Price:** € 28.41
**Availability:** ✅ In Stock

## Summary

> 🔔 Make your presence impossible to ignore—ride loud, ride proud!

## Quick Answers

- **What is this?** ROCKBROS Electric Bike Horn 120dB Adults Kids Bike Horn Alarm IPX4 Waterproof Electronic Bicycle Horns for Handlebars Ebike Scooter Horn by rockbros
- **How much does it cost?** € 28.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/493152670-rockbros-electric-bike-horn-120db-adults-kids-bike-horn-alarm)

## Best For

- rockbros enthusiasts

## Why This Product

- Trusted rockbros brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rain or Shine Ready:** IPX4 waterproof design means your horn stays reliable even in light rain—commute without compromise.
- • **Ultra-Light, Minimalist Style:** At just 34g and sleek trumpet shape, it complements any bike—road, mountain, e-bike, or scooter—without bulk.
- • **Command the Road with 120dB Power:** Cut through city noise and ensure your presence is heard—no more shouting, just instant alert.
- • **Effortless, Damage-Free Installation:** Elastic rubber strap fits multiple handlebar sizes (22.2-31.8mm) with zero tools and zero paint scratches.
- • **Long-Lasting Power with Easy Battery Swap:** Built-in CR2032 replaceable battery keeps you riding longer without frequent removals or downtime.

## Overview

The ROCKBROS Electric Bike Horn delivers a powerful 120dB alert in a compact, stylish design. Its IPX4 waterproof rating ensures durability in light rain, while the elastic strap mount fits a wide range of handlebars without tools or damage. Lightweight at 34g and powered by a replaceable CR2032 battery, this horn is perfect for commuters and casual riders seeking safety and style on every ride.

## Description

ROCKBROS Electric Bike Horn 120dB Adults Kids Bike Horn Alarm IPX4 Waterproof Electronic Bicycle Horns for Handlebars Ebike Scooter Horn

## Features

- 120dB BIKE HORN: Max volume is 120db, enough to alert the walkers or slow bikers you are approaching, no more yelling on the road, good for daily commuting. Built-in CR2032 replaceable battery, no need to frequently remove from the bike after one replace.
- FAST INSTALLATION: Easy to install and protect bike paint with elastic rubber strap, no extra tools needed. High-elastic straps help to mount on different diameter handlebars.Firmly attached to the frame even on the bumps and extreme roads.
- SMALL & PORTABLE: Small and light, weight only 34g, it takes up less space on the handlebar and can be used on road/mountain bikes, e-bikes, dirt bikes, folding bikes, kids bikes or scooters. Three colors--Black/Red/Blue is available to match your bike.
- MINIMALIST DESIGN: Just press to sound, simple and quick to let passersby know. The trumpet shape is stylish and loud, IPX4 level waterproof, not afraid of light rain during riding,but do not recommend to use or put under the heavy rain.
- Any using question or problem please let us know, we will help you to figure out and solve it.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Black |
| Size | One Size |
| Brand | ROCKBROS |
| Material | ABS+PC |
| Style | Modern |
| Item Weight | 0.04 Kilograms |
| Mounting Type | Handlebar Mount |
| Maximum Compatible Size | 31.8 Millimeters |
| Minimum Compatible Size | 22.2 Millimeters |
| Product Dimensions | 2.9"L x 1.7"W x 1.7"H |
| Manufacturer | ROCKBROS |
| Item Package Dimensions L x W x H | 3.86 x 1.85 x 1.85 inches |
| Package Weight | 0.04 Kilograms |
| Item Dimensions  LxWxH | 2.9 x 1.7 x 1.7 inches |
| Brand Name | ROCKBROS |
| Warranty Description | 1-year warrantly |
| Model Name | 34210002001/US |
| Suggested Users | unisex-adult |
| Part Number | 34210002001/US |
| Included Components | horn |
| Sport Type | Cycling |

## Product Details

- **Color:** Black
- **Size:** One Size
- **Brand:** ROCKBROS
- **Material:** ABS+PC
- **Style:** Modern

## Images

![ROCKBROS Electric Bike Horn 120dB Adults Kids Bike Horn Alarm IPX4 Waterproof Electronic Bicycle Horns for Handlebars Ebike Scooter Horn - Image 1](https://m.media-amazon.com/images/I/61BP-r3RMoL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Hola Donde puedo escuchar el sonido de la bocina?**
A: Dear customer,
Because this electric bike horn is charged, there will be a plastic sheet on the batter. When using it, you need to unplug it first, and then press the switch button to hear the sound.
Thank you for your question, please feel free to contact us if you have any questions, we will try our best to answer you!

## Frequently Bought Together

- ROCKBROS Electric Bike Horn 120dB Adults Kids Bike Horn Alarm IPX4 Waterproof Electronic Bicycle Horns for Handlebars Ebike Scooter Horn
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**Shop now:** [https://www.desertcart.gr/products/493152670-rockbros-electric-bike-horn-120db-adults-kids-bike-horn-alarm](https://www.desertcart.gr/products/493152670-rockbros-electric-bike-horn-120db-adults-kids-bike-horn-alarm)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-31*